164718552481 has 16 divisors (see below), whose sum is σ = 199023011200. Its totient is φ = 133172304768.

The previous prime is 164718552433. The next prime is 164718552499. The reversal of 164718552481 is 184255817461.

It is a happy number.

It is not a de Polignac number, because 164718552481 - 2¹⁹ = 164718028193 is a prime.

It is a super-3 number, since 3×164718552481³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164718552181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2673660 + ... + 2734573.

It is an arithmetic number, because the mean of its divisors is an integer number (12438938200).

Almost surely, 2^164718552481 is an apocalyptic number.

It is an amenable number.

164718552481 is a deficient number, since it is larger than the sum of its proper divisors (34304458719).

164718552481 is a wasteful number, since it uses less digits than its factorization.

164718552481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5408488.

The product of its digits is 2150400, while the sum is 52.

The spelling of 164718552481 in words is "one hundred sixty-four billion, seven hundred eighteen million, five hundred fifty-two thousand, four hundred eighty-one".